Ultrasonic Flow Meter Working Principle

This simulation demonstrates the transit-time principle. Two transducers send ultrasonic pulses through the fluid. A pulse traveling with the flow (downstream, shown in orange) arrives slightly faster than a pulse traveling against the flow (upstream, shown in blue). The meter precisely measures this tiny time difference to calculate the fluid's velocity. This velocity, combined with the pipe's cross-sectional area, determines the volumetric flow rate.

Feel free to interact with the flowrate and DN size in below card's to see the downstream and upstream waveform and it's flowrate change.